AUDAC PMQ240 User manual

PMQ Series
User manual
PMQ240 / PMQ480 / PMQ600
www.audac.eu

2
Index
Introduction 4
Precautions 7
Safety requirements 7
Caution servicing 7
EC Declaration of Conformity 7
Waste of Electrical and Electronic Equipment (WEEE) 8
Caution 8
Chapter 1: Pin connections and connectors 9
Connection standards 9
Chapter 2: Front & rear panel 11
Front panel overview 11
Front panel description 11
Rear panel overview 13
Rear panel description 13
Chapter 3: Quick start guide 14
Connecting the amplifier 14
Configuring the amplifier 14
Ready 15
Chapter 4: Connecting the amplifier 16
Input connections 16
Output connections 17
Connection examples 18

3
Chapter 5: Configuring the amplifier 19
Menu structure overview 19
Main screen 20
Settings menu 20
Level 20
Input 21
Mute 21
Output setup 21
Filters 21
Equalizing 22
Delay 23
Max level 23
Standby 23
Limiter 23
Phase reverse 24
Roll off 24
Output type 24
Clear presets 24
General setup 24
Input gain 25
Password 25
LCD 25
USB 26
Info 27
Temperature 24
Factory reset 27
Save 27
Lock 27
Chapter 6: Additional information 28
Technical specifications 28
Notes 30

4
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment
Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
WaveDynamics™
A complete library of AUDAC loudspeaker and set solution presets is available for your
projects, making it easy as picking the right file, loading it & play! Besides the optimal acoustic
configurations, this library also includes the loudspeaker performance parameters providing
a bulletproof protection for them.
The 7-band fully parametric equalizer with adjustable frequency and Q factor and Butterworth,
Bessel and Linkwitz-Riley filters with selectable roll-off allow you to create custom
configurations, tweak your setup to the finest detail and adapt to your rooms acoustics. A
delay function allows time alignment of different speakers in your installation.
Each output is individually software configurable between 100V or 8 Ohm, offering optimal
flexibility for installations with 100V and low impedance loudspeakers combined. Typical
applications are venues with 100V high frequency widely spread and low impedance bass
cabinets added.
Controllability
The operation and configuration of the device can be done in multiple ways. The most
obvious way is by using the front panel controls, featuring a rotary selection dial and channel
selection buttons with a clear and intuitive user inferface on the 2.5" graphical LCD Display.
Total system configurations for pre-defined set solutions can be loaded into the amplifier
using the USB port.
Integration of the audio system into home and industrial automation systems is made easy
through the RS-232 connection & control port whereby functions such as input switching,
volume adjustment, ... can be controlled.
The PMQ series are quad channel Class-D 100V power amplifiers featuring WaveDynamics™ audio processing
technology. They come in different output powers of 240 Watt, 480 Watt and 600 Watt. Their great flexibility and
different configurations make it the solution for nearly every system, no matter if it's a fixed installation or a mobile
application.
Introduction
WaveDynamics™ Quad channel 100V power amplifiers

5
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency
Limiter
Digital
Audio Filters
Flexibility
Every system comes with different requirements and every customer has his own preferences.
Because of this, the structure is made as flexible as possible.
This is achieved by an input selection matrix. Each of the input connections can be patched to
any amplifier channel and contains software controllable gain. The different implementations
of input connections allow the easiest way for connecting in every application, while allowing
signal link through to other amplifiers.
Protection
Optimal protection is not only required for the listeners satisfaction, but can also be important
for complying to the imposed regulations and guaranteeing the lifetime of the equipment.
Because of this, protection precautions are implemented in different ways.
Firstly, user access is made possible on different levels. The device can be blocked or
accessed in user or administrator level. Different levels allow different configuration and
control functions, giving limited (Eg: only volume) control access to standard users and full
configuration control to administrators. User restriction can be enabled & disabled and is
given through password and / or USB-key.
Secondly, equipment protection is implemented by an output limiter which monitors the
output power of every channel and will intervene when the output exceeds the maximum
level. When the output limiter is configured at the maximum power of the loudspeaker, you
can rest assured that the speakers won't be blown during your absence.
Lastly, the maximum volume for every channel can be set independently. This prevents users
(having volume access) going over the limit. This can help you to keep the system compliant
with imposed regulations and maintain the good relationship with the neighbors.
Efficiency
The switching mode power supply and Class D Amplifier technology in combination with
the auto-standby mode for each separate amplifier channel brings an end to the era of the
power-hungry amplifiers. In addition, these features also result in a lightweight amplifier
which benefits the customer when used in mobile applications.
Input 1
Input 2
Input 3
Input 4
OFF
ANALOGUE
GAIN
INPUT SELECT
Level
AMP
TEMP
CPU
DSP
VU READ
RS232
Front
USB
ADC
ADC
ADC
ADC
ADC
ADC
FUNCTION Prot
Clip
-20dB
Sig
CH1 CH2
POWER
ON
SMA750
AUDAC
7 Band
EQ
Time
Alignment
Speaker
Protection
Speaker
Presets
Dynamic
Bass
Limiter
Digital
Audio Filters
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
DAC

6

7
Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
ALWAYS KEEP THESE INSTRUCTIONS. NEVER THROW THEM AWAY
ALWAYS HANDLE THIS UNIT WITH CARE
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
NEVER EXPOSE THIS APPARATUS TO RAIN, MOISTURE, ANY DRIPPING OR SPLASHING LIQUID.
NEVER PLACE AN OBJECT FILLED WITH LIQUIDS, SUCH AS VASES, ON TOP OF THIS APPARATUS
NO NAKED FLAME SOURCES, SUCH AS LIGHTED CANDLES, SHOULD BE PLACED ON THE
APPARATUS
DO NOT PLACE THIS UNIT IN AN ENCLOSED ENVIRONMENT SUCH AS A BOOKSHELF OR CLOSET.
ENSURE THERE IS ADEQUATE VENTILATION TO COOL THE UNIT.
DO NOT COVER THE VENTILATION OPENINGS WITH ITEMS SUCH AS NEWSPAPERS, TABLE CLOTHS,
CURTAINS, ETC. DO NOT STICK ANY OBJECTS THROUGH THE VENTILATION OPENINGS.
ALWAYS KEEP A FREE DISTANCE OF 10 CM ON FRONT AND REAR OF THE APPARATUS FOR
SUFFICIENT AIR CIRCULATION.
DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS OR OTHER APPARATUS
THAT PRODUCE HEAT
DO NOT PLACE THIS UNIT IN ENVIRONMENTS WHICH CONTAIN HIGH LEVELS OF DUST, HEAT,
MOISTURE OR VIBRATION
THIS UNIT IS DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS
PLACE THE UNIT ON A STABLE BASE OR MOUNT IT IN A STABLE RACK
ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE MANUFACTURER
UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS
OF TIME
ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE EARTHING CONNECTION
THE MAINS PLUG OR APPLIANCE COUPLER IS USED AS THE DISCONNECT DEVICE, SO THE
DISCONNECT DEVICE SHALL BE READILY OPERABLE
USE THE APPARATUS ONLY IN MODERATE CLIMATES

8
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and further
relevant specifications described in following directives: 2014/30/EU
(EMC) and 2014/35/EU (LVD)
CAUTION - SERVICING
This product contains no user serviceable parts. Refer all servicing to
qualified service personnel. Do not perform any servicing (unless you
are qualified to)
CAUTION
The symbols shown are internationally recognized symbols that warn about potential
hazards of electrical products. The lightning flash with arrow point in an equilateral triangle
means that the unit contains dangerous voltages. The exclamation point in an equilateral
triangle indicates that it is necessary for the user to refer to the users manual.
These symbols warn that there are no user serviceable parts inside the unit. Do not open the
unit. Do not attempt to service the unit yourself. Refer all servicing to qualified personnel.
Opening the chassis for any reason will void the manufacturer’s warranty. Do not get the
unit wet. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for
service. Disconnect the unit during storms to prevent damage.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The WEEE marking indicates that this product should not be disposed
with regular household waste at the end of its life cycle. This regulation
is created to prevent any possible harm to the environment or human
health.
This product is developed and manufactured with high quality materials
and components which can be recycled and/or reused. Please
dispose this product at your local collection point or recycling centre
for electrical and electronic waste. This will make sure that it will be
recycled on an environmentally friendly manner, and will help to protect
the environment in which we all live.

9
Chapter 1
Pin connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed corresponding
to international wiring standards for professional audio equipment.
XLR:
For balanced signal input connections
Pin 1: Ground
Pin 2: Signal +
Pin 3: Signal -
3-Pin Terminal Block:
For balanced signal input & link output connections.
Left: Signal - (XLR Pin 3)
Center: Signal + (XLR Pin 2)
Right: Ground (XLR Pin 1)

10
RS232 (serial connection interface):
For connection with home automation systems, or other remote control equipment
Connection Standard RS232
PIN 2 PMQ TX
PIN 3 PMQ RX
PIN 5 GND
Settings 19200 Baud
8 Bit
1 Stop bit
No parity
No Handshaking
RS232
The complete command set to control the PMQ amplifiers through RS-232 is available in
the commands user manual which is freely downloadable on www.audac.eu

11
Chapter 2
Front & rear panel
Front panel overview
Front panel description
The front panel of all PMQ amplifiers is identical among all the different models. All models
are including an USB port, LCD display and rotary selection dial.
USB port:
A USB port is provided on the left side of the front panel. This is used for inserting flash drives
with configuration files to load into the amplifier or duplicating system configuration files to
the inserted medium. The inserted flash drive shall support FAT32 filesystem.
Graphical LCD display:
A clear system overview and intuitive user interface is provided on the 2.5” graphical LCD
display. This true colour display provides a clear overview of the amplifiers operation mode
guaranteeing an user friendly experience when browsing through the menu structure.
Rotary selection dial:
Browsing through the menu structure and adjusting parameters is made easy with the rotary
selection dial. This multifunctional rotatable dial allows easy one-hand operation throughout
the entire menu structure. Browsing can be done by turning it while actions will be taken
when pressing it.
Channel selection buttons with indicator LED’s:
Channel selection and monitoring is made easy through a selection button together with four
indicator LED’s for every channel. When pressing the button, the menu structure will call the
settings of the corresponding channel, allowing adjustment of the parameters.
The LED’s give a continuous indication of the operation of the corresponding channel. The
green Signal LED illuminates whenever a signal is present, while the -20dB LED illuminates
when the input signal exceeds the - 20 dBu level. The Clip LED illuminates when the
corresponding channel is working at maximum level. To ensure the best signal-to-noise
ratio, the Clip LED may only illuminate at peak levels.

12
When the Clip LED illuminates, the output limiter of the amplifier will intervene avoiding a
distorted “Clipping” sound on the output. The Protection LED will illuminate when overheating
occurs or any other fault is detected. When the protection LED is illuminated, no signal will
be present on the outputs.
When the level for multiple outputs should be adjusted simultaneously, press and hold their
channel selection buttons for about 3 seconds. The desired channels will be simultaneously
selected and changes will apply to all selected channels.
Power switch:
A power switch allows to switch the amplifier on and off, while the blue indicator LED located
next to the button illuminates when the power is switched on.

13
Rear panel description
The rear panel of all PMQ series amplifiers is identical among all models with various power
ratings.
AC Power inlet with fuse:
The mains power supply (230 V AC / 50 Hz) has to be applied to this AC power inlet. The
connection is made by an IEC power connector and is fitted with a fuse. When replacing the
fuse, make sure that the value of the replacement fuse matches the value of the original
fuse. (PMQ240: T6.3AH/250V - PMQ480: T12AH/250V - PMQ600: T16AH/250V)
Loudspeaker output connections:
The loudspeaker output connections are connected using 4-pin terminal block connectors.
The 4-pin connections contain two (identical) terminals for both 100V and COM, allowing
convenient connection for two loudspeaker lines. More information about loudspeaker output
connections is described in a further chapter of this instruction manual ‘Connecting the
amplifier’.
Signal input connections:
Signal input connectors are implemented in two ways, using balanced XLR and 3-pin terminal
block connectors. This way, connections coming from the signal source such as pre-amplifier,
mixer or matrix system can always be made in the most easy and appropriate way while
allowing signal linkthrough to other amplifiers.
RS232 Connection:
The amplifier can be controlled through external hardware such as home & industrial
automation systems by linking it to the RS-232 connection. The pinout and communication
settings are described in an earlier chapter of this user manual. The complete RS-232
command instruction set and configuration information can be downloaded from the AUDAC
website.
Optional expansion port:
Installation of an optional Dante network interface (ANI44) is possible on the location of
the expansion slot. In default configuration, this expansion slot is covered with a blind plate
which needs to get removed before the optional interface is installed. More information about
the exact installation procedure for the optional interface can be found with the supplied
installation documentation or on the AUDAC website.
Rear panel overview

14
Chapter 3
Quick start guide
Connecting the amplifier
ATTENTION
Make sure the power of the device is turned OFF before any connections or wiring
adjustments are made. Disregarding this rule can lead to permanent damage of the
equipment.
1) Connecting the audio sources
Connect all the audio sources to the input connections on the rear side of the amplifier.
Depending of the installation and the used sources (pre-amplifiers, mixers, matrix systems,
...) the appropriate selection of input connectors can be made between XLR and terminal
block.
2) Connecting the loudspeakers
Connect the loudspeaker lines to the 4-pin terminal block output connections on the rear
panel of the amplifier. The loudspeaker lines shall be connected between the ‘100V’ and
‘COM’ terminals for each output. All outputs contain two (identical) 100V and COM terminals,
allowing convenient connection for two loudspeaker lines. More information about loudspeaker
output connections is described in a further chapter of this instruction manual ‘Connecting
the amplifier’.
3) Other connections
After the in- and output connections are made, other connections such as mains power
(and RS-232 if required) can be made. After connecting them, the amplifier is ready to be
powered-up and configured.
Configuring the amplifier
1) Configuration using presets:
In case your setup is a pre-defined set solution from AUDAC, a set solution configuration file
will be available (*.SOL) whereby all settings for the configuration can be made by uploading
the corresponding file to the amplifier. In this case, the file should be stored on an USB
storage device and inserted to the USB port on front of the amplifier. After inserted the USB
storage device, browse to the ‘Settings’ > ‘General setup’ > ‘USB’ > ‘Load’, browse to the
correct file and press the function dial. After selected, all settings for the set solution will be
loaded in one action, the message “Settings loaded” will appear and all other configuration
steps can be skipped. In case a custom configuration is required, proceed to the next step.

15
2) Configuring the outputs:
The first step when a custom configuration is required is configuring the output channels. In
standard configuration, every output channel is configured as an 100 Volt output channel.
When your installation requires a combination between 100 Volt and Low impedance (8 Ω)
speakers, this shall be configured by selecting the corresponding output and browse to the
‘Settings’ > ‘Output setup’ > ‘Output type’ menu.
NOTE: For further information about connecting the outputs in 100 Volt or 8 Ohm mode,
see page 18 of this manual.
3) Configuring the inputs:
After the output configuration has been made, the next step is the input configuration. In
standard configuration, every output channel is patched with the corresponding input channel
(Input 1 to Output 1, ... ). In case this configuration is required for your setup, this step can
be skipped. In cases where specific inputs should be assigned to the outputs, the input
selection can be made in the settings menu under ‘Settings’ > ‘Input’. Selection is possible
between all applied inputs, including summed inputs (Converting stereo inputs to mono).
After the inputs are assigned to the outputs, the input gain for every used input should be
set. The input gain can be adjusted under ‘Settings’ > ‘General setup’ > ‘Input gain’. On
the right side of this screen are colour indicators shown for every input, giving feedback
of the currently set gain. A correct regulation of the input gain is achieved when the green
indicator is frequently blinking, the orange indicator is only illuminated at the peaks (-6 dB)
and the red indicator blinks rarely or not. When the red indicator blinks frequently, the input
is overdriven and the gain needs to be reduced. When the green indicator blinks rarely or
not, no input signal is detected and the gain needs to be increased.
3) Acoustics configuration:
After the in and output configurations have been made, the next step is making acoustic
configurations and optimalizations. When bass cabinets are used in the installation, it might
be required to add low-pass filters to the bass cabinets channel, and high-pass filters to the
mid/high loudspeakers channels. Filter configurations can be made in the ‘Setup’ > ‘Output
configuration’ > ‘Filters’ menu. Sound quality can be optimized to specific acoustics using
a 7-band equalizer which can be found in the same menu.
Ready
After all above connections and configurations are made, the system is ready for rock & roll.
More specific features such as password protection, standby mode, and many more can
be configured. How this should be done can be found in further chapters of this instruction
manual.

16
Chapter 4
Connecting the Amplifier
NOTE
Make sure the power is switched OFF when changes are made to the connections of the
amplifier.
Input connections
The signal input connections are implemented through a balanced XLR and 3-pin terminal
block (3.81 mm pitch) connector for each input. Both connectors are linked in parallel,
allowing free selection to which connector the signal will be applied. If required, the second
connector can be used for linkthrough of the applied signal to other amplifiers.
The input structure of the amplifier is made flexible due to the input selection matrix, meaning
that any signal applied to the amplifier can be patched to any channel. When driving multiple
channels by the same signal or summing stereo signals and converted into mono, external
links are redundant due to the input matrix.
Selecting and assigning the input signals to the amplifier channels is made easy through
software configurable user interface which is controllable using the front panel controls.

17
Output connections
The loudspeaker output connections are implemented using 4-pin terminal block (5.08 mm
pitch) connectors for each output.
All outputs contain two (identical) 100V and COM terminals, allowing convenient connection
for two loudspeaker lines.
The table below shows the output voltage, impedance and maximum power load for each
amplifier type in 100 Volt or 8 Ohm output configuration:
Output Voltage Impedance Power
PMQ240
PMQ480
PMQ600
100 Volt
100 Volt
100 Volt
41.7 Ohm
20.8 Ohm
16.7 Ohm
240 Watt
480 Watt
600 Watt
PMQ series min load impedance in 100 Volt output mode
Output Voltage Impedance Power
PMQ240
PMQ480
PMQ600
43.2 Volt
62.0 Volt
69.3 Volt
8 Ohm
8 Ohm
8 Ohm
240 Watt
480 Watt
600 Watt
PMQ series max output voltage in 8 Ohm output mode
In 100 Volt output mode, numerous loudspeakers may be connected in parallel until the
minimum load impedance for the entire loudspeaker line has been reached. The number of
allowed loudspeakers is depending of the power / impedance of the connected speakers.
In 8 Ωmode, it is not allowed to connect a load impedance to the output of the amplifier
which is below 8 Ω.

18
100 V Example connection diagram
Multiple loudspeakers can be connected in parallel, on both output connection terminals.
-
-
Matching
Transformer
Matching
Transformer
+
+
-
Matching
Transformer
+
8 ΩExample connection diagram
Only one 8 Ωloudspeaker or two 16 Ωlow impedance loudspeakers are allowed to be
connected in parallel, when the amplifier is switched in 8 Ωmode.
-
+
8 Ω
-
+
16 Ω
-
+
16 Ω

19
Chapter 5
Configuring the amplifier
The configuration of the amplifier can be done using the controls on the front panel of
the amplifier. A graphical user interface is indicated on the front panel LCD display which
guarantees an intuitive and user friendly experience. The menu structure is shown in below
diagram, giving an overview of the configuration possibilities. The following pages give a
detailed explanation for every configurable function.
Level
Input
Mute
Output setup
General setup
Lock
Back
-70 dB ~ 0 dB
Off
Mute Off/ On
Low pass
Type: - Off - Buerworth - Bessel - Linkwitz - Riley
Roll-off: - 12 dB / Oct - 24 dB / Oct
Frequency: - 1 Hz ~ 22 kHz (Steps of 1 Hz)
High pass
Type: - Off - Buerworth - Bessel - Linkwitz - Riley
Roll-off: - 12 dB / Oct - 24 dB / Oct
Frequency: - 1 Hz ~ 22 kHz
(Steps of 1 Hz)
EQ Sengs
Back EQ Frequency:
- Band 1 – 7 Freq sengs 1 Hz ~ 22 kHz (Steps of 1 Hz)
EQ Q-factor: - Band 1 – 7 Q factor seng 0.1 ~ 15 (Steps of 0.1)
Back Back EQ Level
- Band 1 – 7 EQ level seng +15 dB ~ -15 dB (Steps of 1 dB)
Input 1 Input 2 Input 1 + 2 Input 3 Input 4 Input 3 + 4
Input gain
Input 1 Input 2 Input 3 Input 4 Back
-16.5 ~ 30.75 dB
(Steps of 0.75 dB)
Admin password
Change admin password
Adjustable from ‘0000’ to ‘9999’
User password
Change user password
Adjustable from ‘0000’ to ‘9999’
LCD
Brightness: - 10% ~ 100%
Backlight off:
- Never ~ 120 min
Lock device
Delay
0 ~ 12 meter
(Steps of 0.1)
Up to 35 ms
Max level
0 dB ~ -70 dB
Standby
Never ~ 120 min
Limiter Phase reverse
Off/ On
Rol-off
Off/ 50 Hz
Output type
100 V / 8 Ω
Clear presets
Clear / Cancel
Back
USB
Save: - Save sengs to USB drive
Load: - Load sengs
from USB drive
Admin key: - Create USB key
with admin access
Back
User key: - Create USB key with user access
Info
Model name
Soware version
Temperature Temperature
level for each
channel
Factory reset
Recall sengs to
factory default
Back
Off/ On

20
Main screen
The main screen gives a fader overview of the
amplifier outputs and allows to adjust the level for
each of them.
On top of the screen, the names of the output channels
are shown (OUT 1, OUT 2, … ). Right under, the name
of the inputs (INPUT 1, INPUT 2, … ) linked with these
outputs are indicated. And below the input, the level
of the output channel is indicated.
The selection of the corresponding channel can be made using the ‘Channel selection buttons’
which are located below the VU meters of every channel on the front panel of the amplifier.
The output level for the currently operated channel is indicated in green and can be adjusted
by turning the rotary function dial in clockwise (up) and counter-clockwise (down) direction.
The fader will slide up or down when the output level is adjusted. The output level can be
adjusted within range of 0 dB and -70 dB.
When the level for multiple outputs should be adjusted simultaneously, press and hold their
channel selection buttons for about 3 seconds. The desired channels will be simultaneously
selected and changes will apply to all selected channels.
On the bottom of the this screen, a mute indicator is shown for every channel. This button
will be indicated in green when the channel is playing and turns red when muted.
Settings menu
By pressing the rotary function dial once (when
the main screen is displayed), the output settings
menu will be shown. This menu is only accessible in
administrator mode (will be described extensively in a
later section of this user manual) and allows to make
adjustments to the channel setup and general setup.
Scrolling through this menu is possible by turning the
rotary function dial. The currently selected option will
be highlighted and the possibilities will be shown on
the right side of the screen. Settings can be called
by pressing the rotary function dial. Depending of
the selected setting, a selection menu will be indicated on the right side of the display, the
selected setting will toggle between two possibilities or another selection screen will be
indicated.
Level
The first selection is the adjustment of the output level for the corresponding channel. The
output level which can be selected here is identical to the output level which can be adjusted
on the main screen of the amplifier as described above. It can be adjusted within a range
of 0 dB and -70 dB. After the selection has been made, returning to the settings menu is
possible by confirming the selection through pressing the rotary function dial.